Product Description This is transmitting the audio signal by electromagnetic wave inductive coil, receiving device with a micro earpiece designed to fit exactly the human ear canal for secret communication. The sound is clear, but not as loud as a normal earphone, so it's not recommended to use it in a loud area. Specification - Mini wireless earpiece receives signal by inductive coil, by electromagnetic field. - Can't operate with alkaline battery. - The battery can last for 5 hrs. - Audio bandwidth is from 300 Hz to 4 KHz. - Distortion is less than 2%. - The inductive coil and mini wireless earpiece should be together within 70-100 cm. **Note: This is not intended to be used for illegal activities Package Includes 2x Mini earpieces 1x Strong magnet 1x Neck-loop (powered by 2pcs of 9V battery - NOT INCLUDED) 1x 3.5mm jack audio cable
Trustpilot
3 weeks ago
4 days ago
